Set your phone to see if this item is compatible.
Use the Nokia phone selector.
Cool phone locker
Utilities - 0.13 MB
App for lock/unlock your smartphone:
Lock/UnLock by double tap on proximity sensor.
Lock when proximity sensor closed more than 3 seconds.
Slide from right to left in soft key area in menu or home screen for lock smartphone.
+ vibration and signal.
How this work? Look video http://www.youtube.com/watch?v=8S7utCgngkE